To me it really depends on the future of the tank in question. For example, say the M4A3E2 loses a good chunk of its spectacular armor, i'm going to sell it. That being said, since I am an avid tank collector, I won't sell them immediately, as some of these tanks could become quite rare, like the Churchill GC or T-150. And, most likely, anything under tier IV is gone, I almost NEVER play those tiers unless i'm going for a new tank that is of a higher tier, so i'll make most of my gold there. But yeah, I can see the tanks like VK 30.02 M and such becoming good collector vehicles, and potentially rare, I have already bought back my M4A3E2, T-150, Luchs, Churchill GC, and am working on obtaining the KV-13 and VK 30.02 M (never had those tanks), and probably more seeing as after I get these tanks I will still have 6 empty slots in my garage so...

Might sell low tier prems such as the T-15 because I rarely use that. The bt7 artillery is just a fun tank so I’ll keep. I also bought the T150 back and Vk30.02 m because of the amount of gold you can sell them for but they were actually great tanks to play and I may not sell them. I just need to get to 1500 gold so I can buy is5 lol. But still deciding...